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Finding the Fourth Proportional to 21,996.30, 32,993.65 and 8,845.10

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Solution

The fourth proportional to 21,996.30, 32,993.65 and 8,845.10 is: 13,267.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,996.30 : 32,993.65 = 8,845.10 : x
  2. Step 2: Convert to fraction form
    21,996.30/32,993.65 = 8,845.10/x
  3. Step 3: Cross multiply
    21,996.30x = 32,993.65 × 8,845.10
  4. Step 4: Simplify right side
    21,996.30x = 291,832,133.62
  5. Step 5: Solve for x
    x = 291,832,133.62/21,996.30
  6. Step 6: Final answer
    x = 13,267.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.